Former U.S. Air Force personnel claim they experienced UFO activity near nuclear sites at which they worked.
WASHINGTON, DC (CNN) - Speaking at the National Press Club on Monday, former members of the U.S. Air Force said UFOs exist and aliens could be trying to deliver messages to humans.
They believe that the aliens took an interest in the nuclear arms race that began at the end of World War II.
Researcher Robert Hastings was among those who took to the podium.
"Regarding the missile shut-down incidents, my opinion, their opinion, is that whoever are aboard this craft are sending a signal to both Washington and Moscow, among others, that we are playing with fire," Hastings said.
Hastings added that the possession and threatened use of nuclear weapons "threatens the human race and the integrity of the planetary environment."